US471406A

US471406A - westaway

Info

Publication number: US471406A
Authority: US
Publication date: 1892-03-22
Anticipated expiration: 1909-03-22

Description

' (No Model.) '3 Sheets-Sheet 1.

w. 0. WESTAWAY & L. W. BEARD.

WINDMILL. 7

No. 471,406. 4 Patented Mar. 22, 189.2.-

3 Sheets-Sheet 2.

(No Model.)

W. 0-, WESTAWAY' & L. W.'BEARD WINDMILL.

No. 471,406. I Patented Mar. 22,1892.

(No Model.) 3 Sheets-Sheet 3.

W. O. WEST-AWAY 8; L. W. BEARD.

WINDMILL.

Patent-ed Mar. 22, 1892.

' jwe nfa is.

NITED STATES PATENT OFFICE- \VALTER C. \VESTAWVAY AND LEWIS V. BEARD, OF DECORAH, IOWA, ASSIGN- ORS TO THE DECORAH IVINDMILL COMPANY, OF SAME PLACE. I

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 471,406, dated March 22, 1892. Application filed November 3, 1890. fierial No. 370,203. (No model.)

To all whom it may concern.-

Be it known that We, WALTER C. I/VEST- AWAY and LEWIS W. BEARD, both citizens of the United States of America, residing at Decorah, in the county of Winneshiek and State of Iowa, have jointly invented certain new and useful Improvements in WVindmills, of which the following is a specification.

In the accompanying drawings, Figure l is to a top plan of the mill-head; Fig. 2, aside elevation of the same in partial section; Fig. 3, a sectional view showing the coiled spring and the bell-crank lever; and Fig. 4, a partial View in side elevation, with certain parts in section, showing the junction of the connecting-bar to the in ner end of the tail-vane device.

Our invention relates to means in solidhead windmills for resisting the lateral deflection of the wind-wheel out-of the wind with a force directly proportionate to the extent of such deflection.

In the drawings, A indicates the mill-head; B, the wind-wheel shaft carrying the windwheel B D, the vertical reciprocating rod, by which the power'of the wind-wheel is communicated to the pump-bucket; H, the tailvane; H, the usual cord or chain to enable the attendant to throw the wind-wheel out of the wind, and I a tube rigidly attached to the o mill-head. Within the tube I is a coiled spring J, held in place by a flange t' at one end of the tube and a guiding-disk t", whic fits into the tube at the other end. 7

K is a bell-crank lever fulcrumed to the 3 5 mill-head at 70. Its long arm is connected to the tail-vane by an articulated bar L, and its short arm is articulated to a rod M, which extends into the tube I through the center of the coiled spring J therein, and is connected at the farther end of said spring with the guiding-disk 2', which leans against the end of the spring and slides within the tube. When the wind-wheel deflects out of the wind, the lever K is thereby caused to move in the di- '45 rection indicated by the arrow, Fig. 1, compressing the spring J more or less, according to the extent to which the wind-wheel is laterally deflected. Like all coiled springs its resistance increases directly with the extent of its compression, and therefore in this instance directly in proportion to the extent of the lateral deflection ot the Wind-wheel. The increase of resistance thus afiorded is not sufficiently rapid for the best results, and therefore we supplement the action of the spring by, the variable action of a lever or system of levers to increase the effect. With our construction it is not necessary to provide a special lever or system of levers for this purpose, because we can avail ourselves of the action of the tail-vane, the bar L, and the bell-crank lever K to accomplish the desired effect by simply arranging said parts properly. To this end We connect the bar L and lever K'together at an angle not greater than a right angle and so arranged as to become the more acute the more the Wind-wheel is deflected out of the wind, thus progressively reducing the leverage of the wheel against the resisting-spring as such deflection increases. To further aid this action, if deemed necessary, the bar L may be connected to the tail-vane at an angle less than a right angle and so arranged as to gradually approach a I right angle as the wheel deflects out of the wind, and thus increase the opposing leverage of the tail-vane against such lateral deflection. I/Vith the increasing resistance of the spring, the decreasing leverage of the wheel against the spring, and the increasing leverage of the tail-vane against the Wheel the spring becomes more prompt and effective as a regulator than even the old Weight of varying resistance heretofore in general use.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a solid-head Windmill, the combina tion of the mill-head and the pivoted tailvane with the coiled spring J, the bell-crank o lever K, supported by the mill-head, and the bar L, connecting the long arm of the lever to the tail-vane, substantially as described.

2. In a solid-head windmill, the combination of the mill-head, the pivoted tail-vane, the coiled spring, the bell-crank lever, and the bar L, connecting the long arm of the lever to the tail-vane, said lever and bar being so arranged that their angle to each other becomes more acute the more the wind-wheel is I00 laterally deflected from its normal position, substantially as set forth.

3. In a solid-head Windmill, the combination of the mill-head, the pivoted tail-vane, the coiled spring, the hell-crank lever, and the bar L, connecting the long arm of the lever to the tail-vane, said bar and tail-vane being so arranged that their angle to each other is caused to approach a right angle by the lateral deflection of the wind-Wheel from its normal position, substantially as described.

4. In a solid-head windmill, the combination of the mill-head, the pivoted tail-vane, the coiled spring, the bell-crank lever, and